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2009-12-25 Vladimir Serbinenko <phcoder@gmail.com>

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Support for (pxe[:server[:gateway]]) syntax and
	use environment variable for PXE.

	* commands/i386/pc/pxecmd.c (options): Removed.
	(print_ip): Removed.
	(grub_cmd_pxe): Removed
	(grub_cmd_pxe_unload): New function.
	* fs/i386/pc/pxe.c (grub_pxe_disk_data): New structure.
	(grub_pxe_your_ip): Made static.
	(grub_pxe_default_server_ip): Likewise.
	(grub_pxe_default_gateway_ip): Likewise.
	(grub_pxe_blksize): Likewise.
	(parse_ip): New function.
	(grub_pxe_open): Support server and gateway specification.
	(grub_pxe_close): Free disk->data.
	(grub_pxefs_open): Use disk->data.
	(grub_pxefs_read): Likewise.
	(grub_env_write_readonly): New function.
	(set_mac_env): Likewise.
	(set_env_limn_ro): Likewise.
	(parse_dhcp_vendor): Likewise.
	(grub_pxe_detect): Set the environment variables.
	(set_ip_env): New function.
	(write_ip_env): Likewise.
	(grub_env_write_pxe_default_server): Likewise.
	(grub_env_write_pxe_default_gateway): Likewise.
	(grub_env_write_pxe_blocksize): Likewise.
	(GRUB_MOD_INIT(pxe)): Set environment variables.
	* include/grub/i386/pc/pxe.h (grub_pxe_mac_addr): Rename to ...
	(grub_pxe_mac_addr_t): ... this. All users updated.
	(grub_pxe_your_ip): Removed.
	(grub_pxe_server_ip): Likewise.
	(grub_pxe_gateway_ip): Likewise.
	(grub_pxe_blksize): Likewise.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2009-12-25 22:01:06 +01:00
commit 7ebaa2b4ff
4 changed files with 334 additions and 83 deletions
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70
commands/i386/pc/pxecmd.c
View file

@ -1,7 +1,7 @@
/* pxe.c - command to control the pxe driver */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2008 Free Software Foundation, Inc.
* Copyright (C) 2008,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -21,79 +21,31 @@
#include <grub/err.h>
#include <grub/misc.h>
#include <grub/machine/pxe.h>
#include <grub/extcmd.h>
static const struct grub_arg_option options[] =
{
{"info", 'i', 0, "Show PXE information.", 0, 0},
{"bsize", 'b', 0, "Set PXE block size.", 0, ARG_TYPE_INT},
{"unload", 'u', 0, "Unload PXE stack.", 0, 0},
{0, 0, 0, 0, 0, 0}
};
static void
print_ip (grub_uint32_t ip)
{
int i;
for (i = 0; i < 3; i++)
{
grub_printf ("%d.", ip & 0xFF);
ip >>= 8;
}
grub_printf ("%d", ip);
}
#include <grub/command.h>
static grub_err_t
grub_cmd_pxe (grub_extcmd_t cmd, int argc __attribute__ ((unused)),
char **args __attribute__ ((unused)))
grub_cmd_pxe_unload (grub_command_t cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char **args __attribute__ ((unused)))
{
struct grub_arg_list *state = cmd->state;
if (! grub_pxe_pxenv)
return grub_error (GRUB_ERR_FILE_NOT_FOUND, "no pxe environment");
if (state[1].set)
{
int size;
size = grub_strtoul (state[1].arg, 0, 0);
if (size < GRUB_PXE_MIN_BLKSIZE)
size = GRUB_PXE_MIN_BLKSIZE;
else if (size > GRUB_PXE_MAX_BLKSIZE)
size = GRUB_PXE_MAX_BLKSIZE;
grub_pxe_blksize = size;
}
if (state[0].set)
{
grub_printf ("blksize : %d\n", grub_pxe_blksize);
grub_printf ("client ip : ");
print_ip (grub_pxe_your_ip);
grub_printf ("\nserver ip : ");
print_ip (grub_pxe_server_ip);
grub_printf ("\ngateway ip : ");
print_ip (grub_pxe_gateway_ip);
grub_printf ("\n");
}
if (state[2].set)
grub_pxe_unload ();
grub_pxe_unload ();
return 0;
}
static grub_extcmd_t cmd;
static grub_command_t cmd;
GRUB_MOD_INIT(pxecmd)
{
cmd = grub_register_extcmd ("pxe", grub_cmd_pxe, GRUB_COMMAND_FLAG_BOTH,
"pxe [-i|-b|-u]",
"Command to control the PXE device.", options);
cmd = grub_register_command ("pxe_unload", grub_cmd_pxe_unload,
"pxe_unload",
"Unload PXE environment.");
}
GRUB_MOD_FINI(pxecmd)
{
grub_unregister_extcmd (cmd);
grub_unregister_command (cmd);
}